Consulta: subjectFacets:"Myelochroa lindmanii"
Registros recuperados: 1
Data/hora: 10/06/2024 03:41:44

Mitodepressive and clastogenic effects of aqueous extracts of the lichens Myelochroa lindmanii and Canoparmelia texana (Lecanorales, Parmeliaceae) on meristematic cells in plant bioassays
Provedor de dados: Genetics and Molecular Biology
Autores: Campos,José Marcello Salabert de; Davide,Lisete Chamma; Soares,Geraldo Luiz Gonçalves; Viccini,Lyderson Facio.
The cytotoxicity effect of aqueous extracts of the lichens species Myelochroa lindmanii and Canoparmelia texana (Lecanorales, Parmeliaceae) were evaluated using meristematic cells of lettuce (Lactuca sativa) and maize (Zea mays). The seasonal effect was also evaluated. Extracts of M. lindmanii and C. texana inhibited root growth and/or percentage germination, possibly due to alterations in the cell cycle. The M. lindmanii extract showed anti-mitotic effects and blocked the cell cycle in metaphase so that c-mitosis and cells with chromosome duplication were produced. The C. texana extract appeared to hinder cell division, increasing the number of interphase cells. In addition, both extracts caused an increase in percentage of cell death. Clastogenic effects...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Canoparmelia texana; Cytotoxicity; Mitotic index; Myelochroa lindmanii; Plant bioassays.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100024